2025 EC-COUNCIL Authoritative 312-82: EC-Council Blockchain Fintech CertificationB|FC exam Real Question

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EC-COUNCIL 312-82 Exam Syllabus Topics:

Topic	Details
Topic 1	Ethereum: This part of the exam evaluates the expertise of blockchain developers and IT professionals in Ethereum, the leading platform for decentralized applications (dApps).
Topic 2	Security in Blockchains: This part assesses the knowledge of cybersecurity experts, IT auditors, and compliance professionals in securing blockchain systems.
Topic 3	Introduction: This part of the exam gauges the basic knowledge of blockchain technology for professionals like financial analysts and covers key blockchain concepts such as distributed ledgers, consensus mechanisms, and smart contracts, forming the basis for more advanced topics covered later.
Topic 4	Blockchain Project Implementation: In this section, the exam focuses on the capability of project managers to execute blockchain projects effectively.
Topic 5	Open Source: This module assesses the understanding of software developers and IT professionals concerning open-source blockchain frameworks. It explores the advantages of open-source development in blockchain, such as fostering innovation, transparency, and collaboration, as well as how professionals can contribute to or adopt these open-source solutions.
Topic 6	Insurance Applications: This section evaluates the expertise of insurance professionals, such as underwriters and claims managers in utilizing blockchain technology within the insurance industry.

EC-COUNCIL EC-Council Blockchain Fintech CertificationB|FC exam Sample Questions (Q16-Q21):

NEW QUESTION # 16
_______uses a Trusted Execution environment (TEE) to provide randomness and safety in the leader election process via a guaranteed wait time.

A. PoET
B. Pol
C. PoD
D. PoA

Answer: A

Explanation:
Proof of Elapsed Time (PoET)is a consensus mechanism that uses a Trusted Execution Environment (TEE) to ensure randomness and safety in the leader election process by enforcing a guaranteed wait time.
Developed by Intel, PoET is particularly used in permissioned blockchain networks where a TEE can securely run code to determine which node is elected to propose the next block. This mechanism is efficient in terms of energy consumption and provides a fair method for selecting a leader without requiring intensive computational power.
Key Details:
* Role of TEE in PoET: The TEE ensures that nodes wait for a random period before being eligible to propose a new block. This waiting period is verified by the TEE, which acts as a trusted third party to confirm that nodes have adhered to the assigned wait time.
* Randomness and Security: PoET provides randomness in the leader selection process, reducing the chances of any node gaining an unfair advantage. It also promotes security by leveraging the TEE, which is designed to prevent tampering with the waiting time calculations.
* Use Cases: PoET is mainly used in permissioned blockchain environments like Hyperledger Sawtooth, where nodes are pre-approved, and there is a need for a scalable yet secure consensus mechanism.
In summary, PoET is the correct answer as it directly refers to a consensus mechanism that utilizes a Trusted Execution Environment for leader election.

NEW QUESTION # 17
_________is a blockchain based predictions market that uses the Ethereum blockchain.

A. DASH
B. STEEM
C. IBM Blockchain
D. Augur

Answer: D

Explanation:
Auguris a decentralized, blockchain-based predictions market built on the Ethereum network. It enables users to create and participate in markets based on the outcome of real-world events, using smart contracts to automate the process and secure transactions.
Key Details:
* Ethereum-Based: Augur utilizes the Ethereum blockchain to facilitate the creation and settlement of prediction markets. It leverages Ethereum's smart contracts to ensure transparency, immutability, and trustless interactions.
* Decentralized Prediction Market: In Augur, users can bet on the outcome of various events, ranging from sports to elections. The decentralized nature of the platform ensures that no central authority controls the markets, providing a level of censorship resistance.
* Token Usage: Augur uses a token called REP (Reputation) that holders use to report and dispute outcomes of events on the platform. This ensures that the market outcomes are validated in a decentralized manner.
Thus,A. Auguris the correct answer, as it is a blockchain-based prediction market built on Ethereum.

NEW QUESTION # 18
How many bitcoin are available?

A. 1 million
B. It fluctuates with demand
C. It increases each year
D. 21 million

Answer: D

Explanation:
Bitcoin has a fixed supply limit of21 millioncoins, as defined by its protocol. This cap is coded into Bitcoin's original protocol and cannot be altered without a consensus change, ensuring its scarcity and value proposition as a "digital gold." Key Details:
* Fixed Supply: Bitcoin's supply limit is integral to its design, as it imposes a hard cap on the total number of coins that can ever be mined. This limited supply is one of the factors that gives Bitcoin its deflationary nature and potential as a store of value.
* Mining Schedule: New Bitcoins are released into circulation through mining rewards, which halve approximately every four years (in an event known as the "halving"). This gradually reduces the issuance rate until the maximum supply is reached around the year 2140.
* Difference from Other Cryptocurrencies: Unlike some cryptocurrencies that have flexible or inflationary supply models, Bitcoin's finite supply is a distinguishing feature that appeals to those concerned with long-term value preservation.
Therefore,D. 21 millionis the correct answer, as it accurately reflects the total number of Bitcoin that will ever exist.

NEW QUESTION # 19
A________ is a blockchain where participants of the network are already known and trusted.

A. Permissioned ledger
B. Permission less ledger
C. Smart contract
D. Hyperledger Fabric

Answer: A

Explanation:
APermissioned ledgeris a blockchain where participants are known and trusted, and access to the network is restricted to authorized entities. Permissioned ledgers are commonly used in enterprise and consortium settings where privacy, compliance, and control over data are essential.
Key Details:
* Controlled Access: In a permissioned ledger, only pre-approved participants can validate transactions and participate in the consensus process. This model ensures that all network members are identified and trusted, which is ideal for environments requiring a higher level of control and privacy.
* Use Cases: Permissioned ledgers are widely used in industries such as finance, healthcare, and supply chain, where it's important to know and trust participants due to regulatory or operational needs.
* Contrast with Permissionless Ledgers: Unlike permissionless ledgers (such as Bitcoin), which allow anyone to join and participate in the network, permissioned ledgers restrict participation to entities that meet specific criteria.
Thus,A. Permissioned ledgeris the correct answer, as it describes a blockchain network where participants are known and trusted.

NEW QUESTION # 20
What type of DApp allows every participant to remain totally anonymous?

A. Type II
B. Reputation based DApp
C. Fully anonymous DApp
D. TypeI

Answer: C

Explanation:
AFully Anonymous DAppis a decentralized application that is designed to maintain complete anonymity for all participants. These DApps do not require user identity verification, and interactions are carried out in a manner that does not reveal personal information. Fully anonymous DApps are particularly popular in privacy- focused blockchain ecosystems.
Key Details:
* Privacy and Anonymity: Fully anonymous DApps employ various privacy-preserving techniques, such as zero-knowledge proofs or ring signatures, to ensure that user transactions and interactions cannot be traced back to their identities.
* Use Cases: Fully anonymous DApps are often used in applications where privacy is paramount, such as private transactions, anonymous messaging, and confidential voting systems. By design, they prioritize user anonymity over other features.
* Comparison with Other DApp Types: While other DApp types might include some level of user identification or reputation systems, fully anonymous DApps offer total anonymity, making them ideal for users who require privacy at all levels of interaction.
Therefore,A. Fully anonymous DAppis the correct answer, as it describes a DApp that allows participants to remain completely anonymous.

NEW QUESTION # 21
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